Hypertherm EcoSift, Operator'S Manual

Page: 91 / 188

Preventi
ve maintenance
Preventive maintenance
EcoSift Operator Manual 809500 91
Replace a dryer box component or remove a blockage
Use this procedure to replace a heating element or a thermocouple, or to remove a blockage.
Required parts, tools, and materials
Recommended materials
Bucket or other container
Keep spare parts available so that they are ready when required. To order parts, refer to the
Parts
section,
which begins on page 113.
Do this task when the EcoSIft is not running.
1. Disconnect the heating elements from their power sources.
2. Remove the element plate.
Abrasive pours out through the opening. Put a bucket or other container below the dryer box to catch the
spilled abrasive.
3. Remove loose abrasive near the opening.
WARNING
Work that requires opening the electrical enclosure or removing covers or panels from the machine
unit must be done only by an approved technician.
WARNING
Installation, maintenance, and repairs to the electrical and plumbing systems must meet national
and local electrical and plumbing codes. This work must be done only by an approved technician.
CAUTION
Do not touch hot surfaces.
CAUTION
The heating elements can take up to 24 hours to cool.
Refer to
Cooling time
on page 69.
CAUTION
The heating elements can take up to 24 hours to cool. Make sure that the temperature shown on the
home screen (
RUNNING PAGE ) is less than 40.0°C (104°F) before doing maintenance on
components inside the machine.
1-16495 Type J thermocouple with probe
1-16490 Type J thermocouple with compression fitting
1-16483 Narrow heating element (for a 400 VAC EcoSift)
1-16482 Wide heating element (for a 400 VAC EcoSift)
1-16489 Narrow heating element (for a 480 VAC EcoSift)
1-16488 Wide heating element (for a 480 VAC EcoSift)
45 kg (100 pounds) of clean, dry abrasive
CAUTION
Prevent damage to the thermocouple wires.